Mach

noun2

1. •
   A ratio of the speed (of an object, etc.) to the speed of sound in the fluid or other medium through which the object travels. Usually used to describe supersonic speeds; always precedes the Mach number.

   • The jet traveled at Mach 3.
2. •
   (informal) Clipping of Machiavellian.

   • The 1992 review concluded that Machs are generally less satisfied with their jobs. — 2013

noun2

1. •
   Abbreviation of machine.
2. •
   Abbreviation of machinery.

phrase1

1. •
   Acronym of microservices, API-first, cloud-native, headless.